python类filename()的实例源码

def gzip_open_unicode(filename, mode="rb", compresslevel=9,
                      encoding='utf-8', fileobj=None, errors=None, newline=None):
    if fileobj is None:
        fileobj = GzipFile(filename, mode, compresslevel, fileobj)
    return io.TextIOWrapper(fileobj, encoding, errors, newline)

def __init__(self, filename=None, mode=None, compresslevel=9,
                 fileobj=None, **kwargs):
        """
        Return a buffered gzip file object.

        :param filename: a filesystem path
        :type filename: str
        :param mode: a file mode which can be any of 'r', 'rb', 'a', 'ab',
            'w', or 'wb'
        :type mode: str
        :param compresslevel: The compresslevel argument is an integer from 1
            to 9 controlling the level of compression; 1 is fastest and
            produces the least compression, and 9 is slowest and produces the
            most compression. The default is 9.
        :type compresslevel: int
        :param fileobj: a BytesIO stream to read from instead of a file.
        :type fileobj: BytesIO
        :param size: number of bytes to buffer during calls to read() and write()
        :type size: int
        :rtype: BufferedGzipFile
        """
        GzipFile.__init__(self, filename, mode, compresslevel, fileobj)
        self._size = kwargs.get('size', self.SIZE)
        # Note: In > Python3.5, GzipFile is already using a 
        # buffered reader in the backend which has a variable self._buffer
        # See https://github.com/nltk/nltk/issues/1308
        if sys.version.startswith('3.5'):
            sys.stderr.write("Use the native Python gzip.GzipFile instead.")
        self._nltk_buffer = BytesIO()
        # cStringIO does not support len.
        self._len = 0

def __init__(self, zipfile, entry=''):
        """
        Create a new path pointer pointing at the specified entry
        in the given zipfile.

        :raise IOError: If the given zipfile does not exist, or if it
        does not contain the specified entry.
        """
        if isinstance(zipfile, string_types):
            zipfile = OpenOnDemandZipFile(os.path.abspath(zipfile))

        # Normalize the entry string, it should be relative:
        entry = normalize_resource_name(entry, True, '/').lstrip('/')

        # Check that the entry exists:
        if entry:
            try:
                zipfile.getinfo(entry)
            except Exception:
                # Sometimes directories aren't explicitly listed in
                # the zip file.  So if `entry` is a directory name,
                # then check if the zipfile contains any files that
                # are under the given directory.
                if (entry.endswith('/') and
                        [n for n in zipfile.namelist() if n.startswith(entry)]):
                    pass  # zipfile contains a file in that directory.
                else:
                    # Otherwise, complain.
                    raise IOError('Zipfile %r does not contain %r' %
                                  (zipfile.filename, entry))
        self._zipfile = zipfile
        self._entry = entry

def __repr__(self):
        return str('ZipFilePathPointer(%r, %r)') % (
            self._zipfile.filename, self._entry)

def __str__(self):
        return os.path.normpath(os.path.join(self._zipfile.filename, self._entry))

######################################################################
# Access Functions
######################################################################

# Don't use a weak dictionary, because in the common case this
# causes a lot more reloading that necessary.

def __init__(self, filename):
        if not isinstance(filename, string_types):
            raise TypeError('ReopenableZipFile filename must be a string')
        zipfile.ZipFile.__init__(self, filename)
        assert self.filename == filename
        self.close()
        # After closing a ZipFile object, the _fileRefCnt needs to be cleared 
        # for Python2and3 compatible code.
        self._fileRefCnt = 0

def read(self, name):
        assert self.fp is None
        self.fp = open(self.filename, 'rb')
        value = zipfile.ZipFile.read(self, name)
        # Ensure that _fileRefCnt needs to be set for Python2and3 compatible code.
        # Since we only opened one file here, we add 1.
        self._fileRefCnt += 1
        self.close()
        return value

def __repr__(self):
        return repr(str('OpenOnDemandZipFile(%r)') % self.filename)

######################################################################
#{ Seekable Unicode Stream Reader
######################################################################

def gzip_open_unicode(filename, mode="rb", compresslevel=9,
                      encoding='utf-8', fileobj=None, errors=None, newline=None):
    if fileobj is None:
        fileobj = GzipFile(filename, mode, compresslevel, fileobj)
    return io.TextIOWrapper(fileobj, encoding, errors, newline)

def __init__(self, filename=None, mode=None, compresslevel=9,
                 fileobj=None, **kwargs):
        """
        Return a buffered gzip file object.

        :param filename: a filesystem path
        :type filename: str
        :param mode: a file mode which can be any of 'r', 'rb', 'a', 'ab',
            'w', or 'wb'
        :type mode: str
        :param compresslevel: The compresslevel argument is an integer from 1
            to 9 controlling the level of compression; 1 is fastest and
            produces the least compression, and 9 is slowest and produces the
            most compression. The default is 9.
        :type compresslevel: int
        :param fileobj: a BytesIO stream to read from instead of a file.
        :type fileobj: BytesIO
        :param size: number of bytes to buffer during calls to read() and write()
        :type size: int
        :rtype: BufferedGzipFile
        """
        GzipFile.__init__(self, filename, mode, compresslevel, fileobj)
        self._size = kwargs.get('size', self.SIZE)
        # Note: In > Python3.5, GzipFile is already using a 
        # buffered reader in the backend which has a variable self._buffer
        # See https://github.com/nltk/nltk/issues/1308
        if sys.version.startswith('3.5'):
            sys.stderr.write("Use the native Python gzip.GzipFile instead.")
        self._nltk_buffer = BytesIO()
        # cStringIO does not support len.
        self._len = 0

def __init__(self, zipfile, entry=''):
        """
        Create a new path pointer pointing at the specified entry
        in the given zipfile.

        :raise IOError: If the given zipfile does not exist, or if it
        does not contain the specified entry.
        """
        if isinstance(zipfile, string_types):
            zipfile = OpenOnDemandZipFile(os.path.abspath(zipfile))

        # Normalize the entry string, it should be relative:
        entry = normalize_resource_name(entry, True, '/').lstrip('/')

        # Check that the entry exists:
        if entry:
            try:
                zipfile.getinfo(entry)
            except Exception:
                # Sometimes directories aren't explicitly listed in
                # the zip file.  So if `entry` is a directory name,
                # then check if the zipfile contains any files that
                # are under the given directory.
                if (entry.endswith('/') and
                        [n for n in zipfile.namelist() if n.startswith(entry)]):
                    pass  # zipfile contains a file in that directory.
                else:
                    # Otherwise, complain.
                    raise IOError('Zipfile %r does not contain %r' %
                                  (zipfile.filename, entry))
        self._zipfile = zipfile
        self._entry = entry

def __repr__(self):
        return str('ZipFilePathPointer(%r, %r)') % (
            self._zipfile.filename, self._entry)

def __str__(self):
        return os.path.normpath(os.path.join(self._zipfile.filename, self._entry))

######################################################################
# Access Functions
######################################################################

# Don't use a weak dictionary, because in the common case this
# causes a lot more reloading that necessary.

def __init__(self, filename):
        if not isinstance(filename, string_types):
            raise TypeError('ReopenableZipFile filename must be a string')
        zipfile.ZipFile.__init__(self, filename)
        assert self.filename == filename
        self.close()
        # After closing a ZipFile object, the _fileRefCnt needs to be cleared 
        # for Python2and3 compatible code.
        self._fileRefCnt = 0

def read(self, name):
        assert self.fp is None
        self.fp = open(self.filename, 'rb')
        value = zipfile.ZipFile.read(self, name)
        # Ensure that _fileRefCnt needs to be set for Python2and3 compatible code.
        # Since we only opened one file here, we add 1.
        self._fileRefCnt += 1
        self.close()
        return value

def __repr__(self):
        return repr(str('OpenOnDemandZipFile(%r)') % self.filename)

######################################################################
#{ Seekable Unicode Stream Reader
######################################################################

def gzip_open_unicode(filename, mode="rb", compresslevel=9,
                      encoding='utf-8', fileobj=None, errors=None, newline=None):
    if fileobj is None:
        fileobj = GzipFile(filename, mode, compresslevel, fileobj)
    return io.TextIOWrapper(fileobj, encoding, errors, newline)

def __init__(self, filename=None, mode=None, compresslevel=9,
                 fileobj=None, **kwargs):
        """
        Return a buffered gzip file object.

        :param filename: a filesystem path
        :type filename: str
        :param mode: a file mode which can be any of 'r', 'rb', 'a', 'ab',
            'w', or 'wb'
        :type mode: str
        :param compresslevel: The compresslevel argument is an integer from 1
            to 9 controlling the level of compression; 1 is fastest and
            produces the least compression, and 9 is slowest and produces the
            most compression. The default is 9.
        :type compresslevel: int
        :param fileobj: a BytesIO stream to read from instead of a file.
        :type fileobj: BytesIO
        :param size: number of bytes to buffer during calls to read() and write()
        :type size: int
        :rtype: BufferedGzipFile
        """
        GzipFile.__init__(self, filename, mode, compresslevel, fileobj)
        self._size = kwargs.get('size', self.SIZE)
        self._buffer = BytesIO()
        # cStringIO does not support len.
        self._len = 0

def __init__(self, zipfile, entry=''):
        """
        Create a new path pointer pointing at the specified entry
        in the given zipfile.

        :raise IOError: If the given zipfile does not exist, or if it
        does not contain the specified entry.
        """
        if isinstance(zipfile, string_types):
            zipfile = OpenOnDemandZipFile(os.path.abspath(zipfile))

        # Normalize the entry string, it should be relative:
        entry = normalize_resource_name(entry, True, '/').lstrip('/')

        # Check that the entry exists:
        if entry:
            try:
                zipfile.getinfo(entry)
            except Exception:
                # Sometimes directories aren't explicitly listed in
                # the zip file.  So if `entry` is a directory name,
                # then check if the zipfile contains any files that
                # are under the given directory.
                if (entry.endswith('/') and
                        [n for n in zipfile.namelist() if n.startswith(entry)]):
                    pass  # zipfile contains a file in that directory.
                else:
                    # Otherwise, complain.
                    raise IOError('Zipfile %r does not contain %r' %
                                  (zipfile.filename, entry))
        self._zipfile = zipfile
        self._entry = entry

def __repr__(self):
        return str('ZipFilePathPointer(%r, %r)') % (
            self._zipfile.filename, self._entry)

def __str__(self):
        return os.path.normpath(os.path.join(self._zipfile.filename, self._entry))

######################################################################
# Access Functions
######################################################################

# Don't use a weak dictionary, because in the common case this
# causes a lot more reloading that necessary.

def __init__(self, filename):
        if not isinstance(filename, string_types):
            raise TypeError('ReopenableZipFile filename must be a string')
        zipfile.ZipFile.__init__(self, filename)
        assert self.filename == filename
        self.close()

def read(self, name):
        assert self.fp is None
        self.fp = open(self.filename, 'rb')
        value = zipfile.ZipFile.read(self, name)
        self.close()
        return value

def __repr__(self):
        return repr(str('OpenOnDemandZipFile(%r)') % self.filename)

######################################################################
#{ Seekable Unicode Stream Reader
######################################################################

def gzip_open_unicode(filename, mode="rb", compresslevel=9,
                      encoding='utf-8', fileobj=None, errors=None, newline=None):
    if fileobj is None:
        fileobj = GzipFile(filename, mode, compresslevel, fileobj)
    return io.TextIOWrapper(fileobj, encoding, errors, newline)

def __init__(self, filename=None, mode=None, compresslevel=9,
                 fileobj=None, **kwargs):
        """
        Return a buffered gzip file object.

        :param filename: a filesystem path
        :type filename: str
        :param mode: a file mode which can be any of 'r', 'rb', 'a', 'ab',
            'w', or 'wb'
        :type mode: str
        :param compresslevel: The compresslevel argument is an integer from 1
            to 9 controlling the level of compression; 1 is fastest and
            produces the least compression, and 9 is slowest and produces the
            most compression. The default is 9.
        :type compresslevel: int
        :param fileobj: a BytesIO stream to read from instead of a file.
        :type fileobj: BytesIO
        :param size: number of bytes to buffer during calls to read() and write()
        :type size: int
        :rtype: BufferedGzipFile
        """
        GzipFile.__init__(self, filename, mode, compresslevel, fileobj)
        self._size = kwargs.get('size', self.SIZE)
        self._nltk_buffer = BytesIO()
        # cStringIO does not support len.
        self._len = 0

def __init__(self, zipfile, entry=''):
        """
        Create a new path pointer pointing at the specified entry
        in the given zipfile.

        :raise IOError: If the given zipfile does not exist, or if it
        does not contain the specified entry.
        """
        if isinstance(zipfile, string_types):
            zipfile = OpenOnDemandZipFile(os.path.abspath(zipfile))

        # Normalize the entry string, it should be relative:
        entry = normalize_resource_name(entry, True, '/').lstrip('/')

        # Check that the entry exists:
        if entry:
            try:
                zipfile.getinfo(entry)
            except Exception:
                # Sometimes directories aren't explicitly listed in
                # the zip file.  So if `entry` is a directory name,
                # then check if the zipfile contains any files that
                # are under the given directory.
                if (entry.endswith('/') and
                        [n for n in zipfile.namelist() if n.startswith(entry)]):
                    pass  # zipfile contains a file in that directory.
                else:
                    # Otherwise, complain.
                    raise IOError('Zipfile %r does not contain %r' %
                                  (zipfile.filename, entry))
        self._zipfile = zipfile
        self._entry = entry

def __repr__(self):
        return str('ZipFilePathPointer(%r, %r)') % (
            self._zipfile.filename, self._entry)

def __str__(self):
        return os.path.normpath(os.path.join(self._zipfile.filename, self._entry))

######################################################################
# Access Functions
######################################################################

# Don't use a weak dictionary, because in the common case this
# causes a lot more reloading that necessary.

def __init__(self, filename):
        if not isinstance(filename, string_types):
            raise TypeError('ReopenableZipFile filename must be a string')
        zipfile.ZipFile.__init__(self, filename)
        assert self.filename == filename
        self.close()
        # After closing a ZipFile object, the _fileRefCnt needs to be cleared 
        # for Python2and3 compatible code.
        self._fileRefCnt = 0